Eight-impulse four-cylinder locomotive



March 16, 1926.

M. R. FEELEY EIGHT IMPULSE FOUR-CYLINDER LOCOMOTIVE Filed July 15, 1925N P d 3 A m I... LFS.

jnuewfou MATTHEW R FEELEY 6km we (1 S Fatent' Mar, 16, 19 26.

I train P orrc MATTHEW R. FEELEY, 0F SCRAN'ION, PENNSYLVANIA, ASSIGN OB'I'O B-B MANUFAC- TUBING PRODUCTS (JOBPOBA'IPIIIOII', 0F JERSEY CITY,NEW JERSEY, A CORPORA- T101? 0? NEW JERSEY.

To all whom it my concern:

Be it known that MATTHEW R. FEELEY, a

citizen of the United States, residing atpulse Four-CylinderLocomotives, of which the following is a specification.

The present invention relates to ,locomotives of the steam type, andmore-particw' larly to an improved driving means therefor.

An object of the present invention is to provide a locomotive drivingmechanism wherein may be obtained, by the use of four high pressuresingle expansion cylinders, eight successive impulses imparting apractically constant torque; and wherein may be positioned at all timesthree of the CyllndeIS for overcoming the inertia but one cylinder onlyin a dead center or inedective position.

Another object is to uniformly distribute the weight and powerthroughout the dr ving mechanism, and to operate the entlre mechanismsimultaneously, to not only obtain greater tractive effort andasubstantially uniform pressure, but also to reduce vibration; admit ofalight yet durable construction; and to admit operation and to eliminateslipping with a low factor of adhesion. i

Other objects are to provide a driving mechanism 01% this character,which may be ap lied to any class of locomotive for road and yardservice, which admits of adaptation to short wheel bases for traversingsharp curves, such as sixteen degree curves; in which the mechanism isso arranged that, after proper acceleration, some of the cylinders maybe cut out of operationto economize in consumption of steam; in whichsteam may be independently and collectively admitted to the cylinders inpairs which may be easily adapted for use with difierent types ofdriving cylinder arrangements, such aswith single and compoundcylinders; which has its parts interchangeable and relatively small;which admits easy access to the various parts without removing valvegear and other mechanisms as has heretofore been the case; and withwhich the use of boosters and the like may be eliminated.

A still iurther ob'ect of this invention is of starting with-'EIGE'!-IIEPULBE FOUR-CYLINDER 'IQOCOIO'IIVE.

Application filed July 18, 1825. Serial 110.. 48,844.

to provide a drivin structure of this character which has al ofits-driving wheels interconnected, with certain of the driving wheelscou led together at substantially forty-five egrees apart for. effectinga stepped or timed impulse with respect to the several cylindersemployed; and to provide four cylinders and interconnected drivingwheels associated therewith to obtain eight impulses cooperatingsimultaneously to produceqa constant driving pressure which is equallydistributed throughout the entire mechanism at all times during thecycle of operation.

'I h1s invention further aims at the pro- VlSlOIl of a device possessingall of the above features, and which is composed in the main of standardparts; which does not re uire a special construction of locomotive; wichis capable of economical production andapplication; which may beapplied with but slight mlnor modifications to practically all types oflocomotives now in general use, and in course of construction; and whichmay be maintained in operation even after breakage occurs to some of thearts by providing means for cutting out eit er set of cylinders, theconstruction being so arranged that the sets of cylinders may beoperated inde pendently of each other so that the locomotive may remainin service for the remainder of the trip.

A still further object is to provide a condensed construction,difl'ering radically from the mallet type of locomotives; and wherein isobtained in a short wheel base -added rigidity, and the desired pressurenow obtained only in large and cumbersome locomotives.

vThe above and various other objects and advantages of this inventionwill in part be described in, and in part be understood from, thefollowing detailed description of the present preferred embodimentthereof, the

till

til?" illustrated in connection with the Mikado type of loeon'iotive,although it is to be un derstood that this is only for the purpose ofillustration as the invention is applicable to various types oflocomotives.

The superstructure of the locomotive is indicated at 10, and accordingto the pres ent invention the superstructure 10 is mounted upon a frame11 which extends lengthwise therebeneath and is provided with thedesired number of driving wheels 12, and other mechanisms incidentthereto. At the forward end of the frame 11, the locomotive is providedwith a pair of front cylinders 13, one disposed at each side of thelocomotive, and at the rear end of the Frame 11 a second pair of rearcylinders 14. is mounted, one at each side of the locomotive. it steamline leads in the usual manner to the front cylinders 13 and theirassociated valve mechanism; the latter being of common construction andonly generally illustrated. For the purpose of supplying steam to therear cylinders 14 and their as sociated valve mechanism, a connection 16is taken from the front steam line 15 and a steam pipe 17 is ledtherefrom along each side of the boiler and superstructure 10 to therear cylinders 14, although this connection may be otherwise suitablydisposed to meet conditions of installation and design. The admission ofsteam to the front cylinder steam line 15 is accomplished by a throttlevalve or the like in any well known manner common to all types oflocomotives. The rear cylinder steam supply pipes 17 are each provided,at a suitable intermediate point, with a separate throttle valve 18which may be controlled by air pressure from a line 19 extending from aconvenient point within the cab where may be located a control valve 20for manual operation to permit the opeator to cut in and cut out, at allspeeds, the rear cylinders 14, in lien and in the man ner, ot a boosterto effect economy when the desired acceleration of the locomotive isattained.

The steam from the front cylinders 13 is exhausted in the ordinarymanner, but the exhaust from the rear cylinders 14: is conducted througha branch exhaust pipe 21 to the exhaust cavities of the front cylinders13. This construction provides a more uni form exhaust; and permits theuse of a larger exhaust pipe, and reduces the back pressure in thecylinders. The exhaust from either or both pairs of the front and rearcylinders 13 and 1 1 may be otherwise utilized for different types ofdrive, such as in loco motives of the compound type.

tllhe steam distribution is so arranged that all four cylinders may beoperated siinul taneously and are so connected to the driving wheels ashereinafter described in detail that the eight impulses obtained areconsecutive and so follow that a constant torque on the driving wheelsis obtained and a uniform driving pressure is assured.

lfiach pair of front and rear cylinders 13 and 14 is provided with theusual guides 22 and cross heads 23 mounted therein, the latter beingconnected by piston rods 24 with pistons 25 in the respective cylinders13 and 14:. These guides 22 are arranged preferably in longitudinal andhorizontal alignment, and extend toward each other at the opposite sidesof the frame 11, and also are disposed in parallelism with the frame.The driving wheels 12 are arranged in any desired number at. oppositesides of the frame 11, and the front and. back driving wheels aremounted in pairs on straight axles 26. The intermediate driving wheels12 are mounted upon double cranked driving shafts 2?, the crank portionsof which in; between the side bars of the frame 11 and the correspondingcrank portions of the shafts 27 me connected together by insideconnecting rods 28 which interconnect all of the driving wheels 12. Thefront and rear driving wheels 12 are interlocked to the intermediatedriving wheels by outer side rods 29.

The cross heads 23 are connected by main rods 30 to the main crank pins32 of the intermediate driving wheels 12. One pair of the main crankpins 32, associated with one of the sets of cylinders 13 or 14, is seton its driving Wheels 12 approximately fortyfive degrees ahead of theother pair of main crank pins 32 to insure the eight consecutiveimpulses and the'constant torque on the driving wheels 12. The, maincrank pins 32 of each pair of driving wheels 12 may also be angularlyoffset in the usual manner.

-Accessory to each pair of front and rear cylinders 13 and 14 is asuitable valve gear 33 of any adaptable type; the valve gear 33 of therear cylinders 14- being arranged reversely or oppositely to the valvegear '33 of the front cylinders 13, and a reversing shaft 3 1- iscoupled to the valve gears 33 by suitable reach rods 35 tosimultaneously control the shifting of the valve gears 33.

The valve gear 33 of the front pair of cylinders is direct while thevalve gear 33 for the rear pair of cylinders is indirect "for moreregularly developing an even flow ort' power to the driving wheels. Toshift the valve gears 33 a main reach rod 36 is connected to thereversing shaft 3 1 and extends to a reversing gear cylinder 37controlled by air pressure from the cab as shown.

The crank pins 32 on the opposite sides of each wheel and axle set areset at 90 apart, while the crank pins 01" the front pairs ot" wheels areset on each side at to the crank pins 02? the rear pairs of wheels,which would result in the crank pins of the adjacent intermediate axles,driven respeo tively, by the front and rear cylinders, being set at 45in advancement, the relation bemg for instance, the front cylindersdriving the cranks at 0 and 90 and the rear cylinders the cranks at 45and 135. The pistons are all arranged in different degrees ofadvancement from one another so that but one vpiston at a time can stopin a, dead center position; This insures that there are always threecylinders in working position to transmit pressure in overcomlng theinertia of starting.

After the desiredacceleration of the locomotive is reached the throttlevalve 18 may be closed to cut. off the steam supply to the rearcylinders 14 when the consumption of steam'is reduced, and still all ofthe driv- "ing wheels 12 are positively driven from the front cylinders13 as all of the driving wheels 12 are interconnected. The ressure isevenly distributed to all of the riving wheels 12 and there ismaintained a proper balance and pressure throughout the ength of thelocomotive and vibration is reduced to a minimum.

.It is obv ous that various changes and -modifications may be made inthe-details of construction and design of the above specificallydescribed embodiment of this invention without departing from the,spirit thereof, such changes and modifications being restrictedonly bythe; scope of the fol-' lowing claims:-

What is claimed is 1. An eight impulse fou'r cylinder loco- 'mctivecomprising front and rear pairs of -.cylinders,'intercoupled drivingwheels, and i independentfconnections between the cylinders and-thedriving wheels disposed 40 'relation at substantially forty-fivedegrees.

upo'n the intercoupled driving wheels in 0 set eight impulse fourcylinder loco motive comprising a series. of inter-coupled drivingwheels maintained in a.predeter-.

mined relation relative to one another, a air of cyhnders-connected to apair of the 1ving. wheels for transmitting pressure to. the entireseries of'driving wheels, anda sec ond pair'of ,cylinders connected to.another pair of the driving wheels for transmitting pressure .to theentire series of. driving wheels,' said last named connection beinguniform y disposed in offset relation at substantially forty-fivedegreeswith respect to the -first mentioned connection.

3. An eight impulse four cylinder loco- Gil motive comprising a seriesof pairs of driv ing' wheels, means for inter-con ling saidpairs ofdriving wheels in pre etermined angular positions, a pair ofcylinders'connected to a pair, of the driving wheels in;

an ular ofi'set'relation, a second pair of cyl;

in ers connected to another pair of driving wheels in angular ofi'setrelation, and means interconnecting sald pairs of connected drivingwheels with the cylinder connections thereof advanced substantiallyforty-five degrees, one from the other.

4. In a locomotive, a series of pairs of driving wheels, independentimpulse means connected to different pairs of the drivin wheels and withthe connections dispose one substantially forty-five degrees ahead ofthe other.

5. In a locomotive, a series of pairs of driving wheels, front and rearcylinders arranged at the forward and rear ends of the series of d'rivinwheels, independent connections between t e front and rear cylinders andthe adjacent motive comprising front and rear pairs of cylinders,-inter-coupled driving wheels, in-

dependent cormections between the cylinders;

and the wdrivin wheels disposed upon the intercoupled driving wheels inofl'set relation at substantially forty-five degrees, di rect frontvalve gearfor the front pair 1 of cylinders, 'and indirect valve gearfor the rear pair of cylinders for more .regularly developing an evenflow of power to the driving wheels.

In testimony whereof I aflix my signature.

MATTHEWR. FEELEY.

